Hedonic Adaptation: Why More Wealth Stops Thrilling

Key Takeaways

• Hedonic adaptation is the return to a baseline happiness level after positive or negative life changes.
• Brickman and Campbell named it in 1971; the 1978 lottery-winners study found winners no happier long term.
• Applied to wealth, rising portfolio value gives a fading thrill, pushing investors toward needless risk.
• Setting goals around financial security rather than ever-higher numbers blunts the treadmill effect.

What It Is

Hedonic adaptation, sometimes called the hedonic treadmill, is the tendency to drift back to a roughly stable baseline of happiness after positive or negative events. Psychologists Philip Brickman and Donald Campbell proposed the idea in 1971.

The most cited evidence is a 1978 study by Philip Brickman, Dan Coates, and Ronnie Janoff-Bulman, "Lottery Winners and Accident Victims: Is Happiness Relative?" It examined Illinois lottery winners who had won large sums and found they were not meaningfully happier than a comparison group. The thrill of the win faded, and life returned to its prior emotional level. Later research, including work by Diener and colleagues, refined the picture: set points can shift somewhat, and people adapt at different rates, but the pull back toward a baseline is real.

The Intuition

Pleasure comes largely from change, not from a steady state. A raise, a windfall, or a strong trading year feels great at first because it is new. Over weeks and months it becomes the new normal, and the emotional lift drains away. You adapt, and the same level of wealth that once excited you now feels ordinary.

For investors this is a quiet trap. If each gain only thrills briefly, the temptation is to chase a bigger gain to recreate the feeling. The treadmill keeps moving, so you keep running. The money grows, but the satisfaction does not keep pace, and the search for the next high can push you into risks your financial plan never needed.

How It Works

Adaptation works through shifting reference points. Your mind judges your situation against what you have grown used to, not against an absolute scale. A portfolio that doubled becomes the new baseline, so a further 10 percent gain feels modest, while a 10 percent drop from that higher level can sting sharply.

This interacts with loss aversion. After adapting upward, declines from the new peak feel like real losses even if you are still far ahead of where you started. The practical implication is to anchor goals to function, not feeling. Define enough in terms of what your capital must do, such as fund retirement or replace income, rather than a number that will always feel insufficient once you reach it. Spending on experiences and on others tends to resist adaptation better than accumulating more for its own sake.

Worked Example

An investor sets a goal of a 500,000 dollar portfolio, believing it will bring lasting contentment. After a strong few years they hit it. The satisfaction is intense for a few weeks, then fades. The 500,000 dollar balance becomes the new normal.

So they raise the target to 1 million, certain that this time the number will be enough. They take on more concentrated positions and more leverage to get there faster, because the old, safer pace no longer delivers the same emotional payoff. The treadmill has reset the goalpost.

The risk is now mismatched to any real need. The original 500,000 dollars may already have covered the investor's actual goals, such as security and retirement. The extra risk taken to chase the next milestone serves the fading thrill, not the financial plan. If a downturn hits the over-concentrated, leveraged portfolio, the chase for a feeling that adaptation guarantees will fade can cause permanent damage to the very security the money was meant to provide.

Common Mistakes

1. Setting goals as pure numbers. A target balance will feel ordinary the moment you reach it. Define goals by what the money must accomplish instead.

2. Chasing the next high with more risk. Adding leverage or concentration to recreate a fading thrill mismatches risk to need. Size positions to the plan, not the feeling.

3. Treating each new peak as the floor. After adapting upward, normal declines feel like losses. Remember how far ahead you still are from your starting point.

4. Equating more wealth with more happiness. The lottery research suggests the link is weaker than people assume. Do not over-sacrifice the present for a payoff that adaptation will dull.

5. Ignoring spending that resists adaptation. Experiences and giving tend to deliver more durable satisfaction than accumulating for its own sake. Build that into how you use gains.

Frequently Asked Questions

What is hedonic adaptation in simple terms? Hedonic adaptation is the way people return to their normal level of happiness after good or bad events. A raise or a windfall thrills you briefly, then becomes the new ordinary.

How does hedonic adaptation affect investment decisions? It makes each gain feel temporary, tempting investors to chase bigger returns with more risk to recreate the thrill. As the portfolio example shows, this can push risk far beyond what your actual financial goals require.

What is a real-world example of hedonic adaptation and wealth? The 1978 study of lottery winners found they were not lastingly happier than ordinary people. The excitement of a large win faded, and their happiness returned toward its prior baseline.

How can investors avoid the hedonic adaptation trap? Anchor goals to what your capital must do, such as fund retirement, rather than ever-rising numbers. Size risk to the plan, and direct gains toward experiences and giving, which resist adaptation.

How is hedonic adaptation different from loss aversion? Hedonic adaptation is the fading of feeling after a change, good or bad. Loss aversion is the fact that losses hurt more than equal gains feel good. Adaptation resets your reference point; loss aversion shapes how you react to moves around it.

Sources

1. Corporate Finance Institute. "Hedonic Treadmill." https://corporatefinanceinstitute.com/resources/career-map/sell-side/capital-markets/hedonic-treadmill/
2. Diener, E., Lucas, R.E., & Scollon, C.N. "Beyond the Hedonic Treadmill: Revising the Adaptation Theory of Well-Being." https://ink.library.smu.edu.sg/cgi/viewcontent.cgi?article=1920&context=soss_research
3. Positive Psychology. "Hedonic Treadmill." https://positivepsychology.com/hedonic-treadmill/
4. ScienceDirect. "Adapting to heart conditions: a test of the hedonic treadmill." https://www.sciencedirect.com/science/article/abs/pii/S0167629601000844

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.